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Its pitch was that humans really were just apes, and much of our behaviour could be understood in terms of animal behaviour and its evolution. Yes, we were naked and bipedal, but beneath the veneer of culture lurked an ancestral avatar. In the laid-back, blue-smoke atmosphere of the hippy era, the book struck a chord with the wider public — if for no other reason than that, in the decade of free love, it asserted that humans had the largest penis for body size of all the primates. The early s had seen the first field studies of monkeys and apes, and a corresponding interest in human evolution and the biology of contemporary hunter-gatherers. Our hairlessness at around 2m years ago long predates the rise of pair bonds a mere , years ago. It owes its origins to the capacity to sweat copiously another uniquely human trait in order to allow us to travel longer distances across sunny savannahs.
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Influence of personality, age, sex, and estrous state on chimpanzee problem-solving success

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What stresses moms most? The idea is to enable women to stay focused on sex by integrating the physical with the mental so that mental excitement can heighten physical arousal and vice versa. To try it at home, Brotto suggests spending 10 minutes a day paying very close attention to any activity — walking the dog, washing dishes, drinking a cup of coffee. To achieve this, imagine putting your wandering thoughts on a conveyor belt and watching them slowly roll away. Brotto advises next getting familiar with your body by examining and touching yourself during or after a shower, experimenting with what feels good. When you're ready, work toward incorporating the focusing exercise while you're aroused, either alone or with your partner.
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In addition to demographic factors, such as age or sex, certain personality dimensions have also been revealed as reliable correlates of problem-solving by animals. Such correlates, however, have been little-studied in chimpanzees. To empirically test the influence of age, sex, estrous state, and different personality factors on chimpanzee problem-solving, we individually tested 36 captive chimpanzees with two novel foraging puzzles.
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What sort of pervert would even think that about elephants, for God sake? And, even if somebody did think it, why on earth would they put it in writing? Perhaps so, but there is a bit more to this story than it may seem. Part of the charm of traveling to Africa is to see nature in all of it glory. Some of that is full of awe and grandeur, but some of it is brutal, violent and gory.
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